The production of Freego ebike battery pack is handled by the most advanced production equipment. 2.
This product has a strong structure. It has passed the structural tests which verify its static and dynamic load-handling ability, and general strength and stability. 3.
Excellent skidproof performance is one of the biggest features of this product. A new type of material has been used in it to increase friction during walking. 4.
This is a product of nearly infinite applications. 5.
By virtue of the size of the company and a strict management system, Freego Power Co., Ltd. provides customers with cost-effective products and services.
◪ Applicable for electric bikes, e-scooters, e-motorcycles,and other small vehicles;
◪Fixed to the down tube easily and save space;
◪Over 2000 life cycles which can work approx. 5 years;
◪Thin size and light weight with Plastic material;
◪Special cell holders design is safer for cells’ vibration.
/ TECHNICAL DATA
Maximum Charge Current
Maximum Charge Voltage
Constant Discharge Current
Maximum Discharge Current
Discharge Stop Voltage
In one month
In sit month
/ PRODUCT APPLICATION
/ OUR SERVICES
■ Best quality and the lowest price can meet your demand.
■ Impeccable after-sales sevice will solve all worries after you buy our products.
■ 24 hours on line to reply you immediately.
■ OEM/ODM is available
---Printing logo on customized products
---Customized design and material
---Customized packing for your products
Every process will be checked by responsible QC which insure the products' quality
Samples could be prepared for you on time
Guide you how to install
Compensate for the product if some quality problems on our side
If you come to our factory, please inform us in advance,we pick you up if our driver available
Freego Power Co., Ltd. is currently the largest production base for ebike battery in Asia. 2.
Freego Power Co., Ltd. has strict and systematic product quality assurance and production management system. 3.
We are always active in driving our social responsibility programs. We will always mobilise our employees in different departments to work together to find solutions that can help create a bigger positive impact. Sustainability is embedded in our operational practices. We have made great efforts in energy efficiency and pollution reduction. We also have embedded sustainability in culture. We have established a strategic goal based on the industry. We would like to integrate more kinds of technologies into our business, such as advanced IT and intelligence, hoping to help us launch new products or increase gross revenue.
48 V-25 Ah LiNiMnCoO2 E-bike battery with Charger:
(see the end of this description for a more detailed explanation of the chemistry)
Suitable for up to 1200 W motor
- Long cycle life over 1000 cycles
- High safety
- High-temperature working capability
- High rate discharge current
- No memory effect
- Low self-discharge
- Environmental friendly
- BMS short-circuit production function, safe and reliable
- ANDERSON Plug output
- (Anderson connector supplied)
- Nominal Voltage: 36 V
- Minimum Rated Capacity: AH
- Discharge cut-off Voltage:39-40V
- Charging cut-off Voltage: 54.8V
- Max charging Voltage: 54.8V
- Max charging Current: 3A (for maximum battery life)
- Max discharge Current: 60-70A Peak Rate(1-2 S)
- Nominal Discharge Current: 10-15A (For use with Max 500W motor)
- Charging Method: CC-CV
- Dimensions : 37cm x 11cm x 7.5cm
- Gross weight: 3.2 Kg
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC)
Leading battery manufacturers focus on a cathode combination of nickel-manganese-cobalt (NMC). Similar to Li-manganese, these systems can be tailored for high specific energy or high specific power, but not both. For example, NMC in an 18650 cell for moderate load condition has a capacity of about 2,800mAh and can deliver 45 A; NMC in the same cell optimized for specific power has a capacity of only about 2,000mWh but delivers a continuous discharge current of 20A. A silicon-based anode will go to 4,000 m Ah but at reduced loading and shorter cycle life.The secret of NMC lies in combining nickel and manganese. An analogy of this is table salt, which the main ingredients of sodium and chloride are toxic on their own but mixing them serves as seasoning salt and food preserver. Nickel is known for its high specific energy but poor stability; manganese has the benefit of forming a spinel structure to achieve low internal resistance but offers a low specific energy. Combining the metals
enhances each other strengths. NMC is the battery of choice for power tools, e-bikes and other electric power trains. The cathode combination of typically one-third nickel, one-third manganese and one-third cobalt offers a unique blend that also lowers raw material cost due to reduced cobalt content. Other combinations, such as
NCM, CMN, CNM, MNC and MCN are also being offered in which the metal content of the cathode deviates from the 1/3-1/3-1/3 formula. Manufacturers keep the exact ratio a well-guarded secret (resources from batteryuniversity.com).
Figure 7: Snapshot of NMC
NMC has good overall performance
and excels on specific energy.
This battery is the preferred candidate
for the electric vehicle and
has the lowest self-heating rate.
|Lithium Nickel Manganese Cobalt Oxide: LiNiMnCoO2. cathode, graphite anode Since 2008|
Short form: NMC (NCM, CMN, CNM, MNC, MCN similar with different metal combinations)
|Voltage, nominal||3.60V, 3.70V|
|Specific energy (capacity)||150–220Wh/kg|
|Charge (C-rate)||0.7–1C, charges to 4.20V, tendency to 4.30V; 3h charge. Rapid charge causes stress.|
|Discharge (C-rate)||1C recommended; 2C continuous possible; 2.50V cut-off|
|Cycle life||1000–2000 (related to depth of discharge, temperature)|
|Thermal runaway||210°C (410°F) typical. High charge promotes thermal runaway|
|Applications||E-bikes, medical devices, EVs, industrial|
|Comments||Provides high capacity and high power. Serves as Hybrid Cell. Favorite chemistry for many uses; market share is increasing.|